Tag · 3 articles
ankle stiffness
how to·9 min read
Skateboarding Ollie Explosive Jump Test: Measuring Pop Height and Ankle Stiffness
A skateboarding ollie power test that compares bare-jump height to on-board pop height, showing how much explosive power actually survives the trick.
skateboarding·action-sports·explosive-power
exercises·9 min read
Ankle Stiffness and the Spring-Mass Model: Training and Testing for Jumping Athletes
Understand how ankle stiffness drives jumping and sprinting performance through the spring-mass model. Learn to test leg spring stiffness and train it.
ankle-stiffness·spring-mass-model·leg-stiffness
exercises·8 min read
Ground Contact Time in Plyometric Training: How to Measure and Minimize It
Ground contact time benchmarks for 5 athlete levels (100-280ms) with matching RSI scores, plus 5 coaching cues that shorten contact time.
ground-contact-time·plyometrics·reactive-strength